Super simple basketball counter

The actual picture of the basketball counter is as follows:
 
The schematic diagram and PCB diagram drawn by Altium Designer are as follows:
 

The simulation schematic is as follows

The microcontroller source program is as follows:

#include

#include

#define uchar unsigned char

#define uint unsigned int

#define out P0

sbit RS=P2^0;

sbit RW=P2^1;

sbit E=P2^2;

void lcd_initial(void);

void check_busy(void);

void write_command(uchar com);

void write_data(uchar dat);

void string(flyer name ,flyer *s);

void delay(uint);

flying i;

void main(void)

{

  lcd_initial();

  while(1)

  {

        write_command(0x06);

    string(0x82,"Name:HONG JIE");

        write_command(0x04);

        string(0xce,"987654321:QQ");

        for(i=0;i<40;i++)

       {     

              write_command(0x1c);

              delay(50);

       }

        }

}

void delay(uint j)

{

  fly i=250;

  for(;j>0;j--)

  {

    while(--i);

        i=249;

        while(--i);

        i=250;

        }

}

void check_busy(void)

{

  flying dt;

  do

  {

    dt=0xff;

        E=0;

        RS=0;

        RW=1;

        E=1;

        dt=out;

        }while(dt&0x80);

        E=0;

}

void write_command(uchar com)

{

  check_busy();

  E=0;

  RS=0;

  RW=0;

  out=com;

  E=1;

  _nop_();

  E=0;

  delay(1);

}

void write_data(uchar data)

{

  check_busy();

  E=0;

  RS=1;

  RW=0;

  out=that;

  E=1;

  _nop_();

  E=0;

  delay(1);

}

void lcd_initial(void)

{

  write_command(0x38);

  write_command(0x0c);

  write_command(0x06);

  write_command(0x01);

  delay(1);

}

void string(float name, float *s)

{

  write_command(ad);

  while(*s>0)

  {

    write_data(*s++);

        delay(100);

        }

}